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      Biologi Reproduksi Ikan Opudi Telmatherina sarasinorum Kottelat, 1991 di Danau Matano, Sulawesi Selatan

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      Date
      2022
      Author
      Al Hakim, Asyam
      Affandi, Ridwan
      Kamal, Mohammad Mukhlis
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      Abstract
      Ikan Opudi (Telmatherina sarasinorum) merupakan spesies endemik yang mendiami perairan Danau Matano, khususnya pada daerah litoral. Hampir satu dekade belum ada pembaharuan terkait aspek biologi reproduksi ikan ini, yang mungkin terjadi perubahan terhadap aspek biologi reproduksinya. Penelitian ini bertujuan untuk menganalisis aspek biologi reproduksi ikan opudi Telmatherina sarasinorum di Danau Matano, Sulawesi Selatan. Pengambilan sampel menggunakan metode acak sederhana. Penelitian dilakukan pada September 2020- Mei 2021 dengan jumlah sampel yang digunakan sebanyak 1760 ekor individu dari 2122 ekor individu, yang terdiri dari 1212 ekor jantan dan 548 ekor betina. Hasil penelitian menunjukkan nisbah kelamin ikan opudi di alam adalah tidak seimbang. Ukuran pertama matang gonad ikan betina lebih kecil dibandingkan ikan jantan. Potensi reproduksi berkisar antara 80-507 telur, dengan rata-rata 228 telur dalam satu batch, spesies ini termasuk dalam kelompok partial spawning. Lokasi pemijahan diduga di S. Lawa, P. Salonsa, Utuno, dan Tanah Merah atau di sekitar wilayah selatan Danau Matano. Ikan memijah disepanjang waktu dengan puncak musim pemijahan pada bulan April, Juli, September dan Desember.
       
      Opudi fish (Telmatherina sarasinorum) is an endemic fish species inhabiting Lake Matano, especially in littoral areas. Almost a decade no update regarding the reproduction biology aspects of this fish, may there is a change in their reproduction biology aspects. The aim of the study was to analyze the reproduction aspects of opudi fish Telmatherina sarasinorum in Lake Matano, South Sulawesi. Sampling method was carried out using simple random sampling method. The study was conducted in September 2020-May 2021, of which 1760 individual fishes from 2122 individual fishes, consisting of 1212 males and 548 females were obtained. The results showed that sex ratio of opudi fish in nature was unbalanced. Size of the first gonad maturity of female fishes is smaller than male fishes. Reproductive potential shown by eggs number ranged between 80-507 eggs, with 228 eggs in average in batch, this species is categorized into partial spawning. Spawning ground is presumed in S. Lawa, P. Salonsa, Utuno, and Tanah Merah or around the southern region of Lake Matano. The fish spawning all the time, with peak spawning season in April, July, September and December.
       
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      http://repository.ipb.ac.id/handle/123456789/111414
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      • UT - Aquatic Resources Management [2682]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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